[Coco] CoCo temperature monitoring
mark at cloud9tech.com
Mon Mar 12 11:01:41 EDT 2007
Other than resolution being poor, you might want to consider scaling
the value to a range. Better to use modern technology, thermistors are
Go with a DALLAS product or single wire, I2C interface device. Digital
is the way of the future.... :)
Quoting theother_bob <theother_bob at yahoo.com>:
> Hey everyone,
> ISTR an old article in Hot CoCo or TCCM about using the CoCo
> joystick inputs to read the temperature using thermistors. I haven't
> dug out the article yet, but I'm pretty sure I still have it.
> Meanwhile, has anyone done this and have any practical advice about
> how far I could run remote sensors from a CoCo joystick port?
> Another thing I'd like to try is a remote microphone connected to
> the Cass input which could be monitored for high/low noise levels
> (specifically it should be able to tell if some cooling fans are
> running at low or high speed.)
> In case you can't tell, I am wanting to monitor (and log)
> temperatures in different rooms with the possibility that the CoCo
> doing the monitoring could alert me somehow (perhaps a phone call
> from the Speech/Sound Pak) if my server room is getting too hot. (We
> had an A/C failure that just cost us an $850 motherboard in an HP
> server with 6 redundant fans. Ironically the cheap PC clones next to
> it handled the heat just fine!)
> Bored stiff? Loosen up...
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